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CD22M3494SQZ Datasheet(PDF) 7 Page - Intersil Corporation |
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CD22M3494SQZ Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 8 page 7 FN2793.7 January 16, 2006 To make a connection (close switch) between any two points, specify an “X” address, a “Y” address, set “DATA” high, and switch “STROBE” from low to high. To break a connection, follow this same procedure with “DATA” low. Typical Performance Curve Example: DATA X ADDRESS Y ADDRESS AX3 AX2 AX1 AX0 AY2 AY1 AY0 To connect switch X3 to switch Y4: 1 0 0 1 1 1 0 0 To connect switch X6 to switch Y7: 1 1 0 0 0 1 1 1 To break connection from X3 to Y4: 0 0 0 1 1 1 0 0 70 60 50 40 30 20 10 0 -8 -6 -4 -2 0 2 4 6 8 VIN (V) 25°C -40°C 85°C rON vs VIN AT -55°C, 25°C AND 85°C VEE = -6V, VSS = 0V, VDD = 6V Pin Descriptions SYMBOL 40 LD PDIP PIN NO. 44 LD PLCC PIN NO. DESCRIPTION MQ SQ POWER SUPPLIES VDD 40 44 44 Positive Supply. VSS 16 18 17 Negative Supply (Digital). VEE 20 22 22 Negative Supply (Analog). ADDRESS AX0 - AX3 5, 22, 23 and 4 5, 24, 25 and 4 X Address Lines. These pins select one of the 16 rows of switches. See the Truth Table for the valid addresses. AY0 - AY2 24, 25 and 2 26, 27 and 2 Y Address Lines. These pins select one of the 8 columns of switches. See the Truth Table for the valid addresses. CONTROL DATA 38 42 DATA Input determines the state of the addressed switch. A high or one will close the switch. A low or zero will open the switch. STROBE 18 20 STROBE Input enables the action defined by the DATA and ADDRESS Inputs. A low or zero results in no action. The ADDRESS Input must be stable before the STROBE Input goes to the active high level. The DATA Input must be stable on the failing edge of the STROBE. RESET 3 3 MASTER RESET. A high or one on this line opens all switches. CS 36 40 39 CHIP SELECT. Device is selected when CS is at a high level, allows the crosspoint array to be cascaded for matrix expansion. CD22M3494 |
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